FKaria
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 3 How to prove $1 + a + \cdots + a^n + \cdots = \frac{1}{1-a}$? 2 Maximum of 2 random variables 1 cryptography deciphering this text 0 Distribution of Maximum of Sum of Sum of Gaussians

### Reputation (230)

 +5 Eigenvalues of $\sum_{i=1}^n \frac{(x_i - x_{i-1})^2}{\lambda_i}$ +45 How to prove $1 + a + \cdots + a^n + \cdots = \frac{1}{1-a}$? +15 Distribution of Maximum of Sum of Sum of Gaussians +5 Adjoint of the infinitesimal generator of a stochastic process

### Questions (3)

 4 Is it true that $\sum_{k=1}^n(p_k\prod_{i=1}^k(1-p_i)) \stackrel{\mbox{?}}{=} 1 - \prod_{i=1}^n(1-p_i)$ 2 Adjoint of the infinitesimal generator of a stochastic process 1 Eigenvalues of $\sum_{i=1}^n \frac{(x_i - x_{i-1})^2}{\lambda_i}$

### Tags (17)

 3 algebra-precalculus 0 quadratic-forms 3 proof-strategy 0 statistics 2 probability × 3 0 stochastic-integrals 1 discrete-mathematics × 2 0 stochastic-processes 1 cryptography 0 eigenvalues-eigenvectors

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 Stack Overflow 374 rep 210 Quantitative Finance 260 rep 16 Mathematics 230 rep 16 Super User 101 rep 2 Meta Stack Exchange 101 rep